Determinants of Forearm Bone Mineral Density among Early Adolescents Female Gymnasts and Swimmers 17. lipnja 2026. | Franjo Lovric Wiktoria Pietrzaka, Anna Kopiczkob aDoctoral School of the Józef Piłsudski University of Physical Education in Warsaw, Poland bDepartment of Human Biology, Józef Piłsudski University of Physical Education in Warsaw, Poland